US Bridges

Rt U S over Wallen CR

PoorPosted for load

Washington County, Missouri · S 9 T 36 N R 3 E · Structure no. 6810

Built
1956
69 years old
Condition
Poor
inspected June 2024
Type
Tee Beam
Concrete
Length
143 ft
3 main spans
Daily traffic
1,124
2024 count
Owner
State
State Highway Agency

About this bridge

Rt U S over Wallen CR is a concrete tee beam carrying Rt U S over Wallen CR in Washington County, Missouri. It was built in 1956, so it is 69 years old, older than the Missouri average of 45.1 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. Its operating status is: posted for load restriction.

It carries about 1,124 vehicles a day, roughly 8% of them trucks, projected to reach 1,574 by 2044. The structure is 143 ft (43.6 m) long and 24 ft wide. If it were closed, the detour would be 24.2 mi (39 km).

CarriesRt U S
CrossesWallen CR
LocationS 9 T 36 N R 3 E
RouteState Highway 0U
Coordinates37.85092, -90.69901
Functional classRural Major Collector

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck4 PoorAdvanced section loss, deterioration, spalling or scour.
Superstructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating22.8 US tons
Inventory rating13.9 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans3
Design loadH 10
Structure length143 ft (43.6 m)
Longest span48 ft (14.5 m)
Deck width24 ft (7.2 m)
Roadway width20 ft (6.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,124 (2024)
Projected traffic1,574 by 2044
Trucks8%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed24.2 mi (39 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$1.5 million (2025 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Rt U S over Wallen CR built?

It was built in 1956, making it 69 years old in 2025.

What condition is Rt U S over Wallen CR in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in June 2024.

How much traffic does Rt U S over Wallen CR carry?

About 1,124 vehicles per day (2024 count), of which roughly 8% are trucks.

How long is Rt U S over Wallen CR?

The structure is 143 ft (43.6 m) long with a longest span of 48 ft (14.5 m) and a deck 24 ft wide.

Who owns Rt U S over Wallen CR?

It is owned by the State Highway Agency.